74LVT244MSA

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74LVT244MSA is a member of the advanced low voltage CMOS family featuring low power consumption and high speed performance. It operates from a 1.65 V to 5.5 V and is offered in 10-lead SMD, 20-lead and 24-lead in both plastic and ceramic packages. This device has eight positive-edge triggered 3-state buffers with individual output enable control inputs.

The device is designed to provide the same high performance levels found in the 74HC244M with additional performance benefits. Significantly reduced power consumption is achieved when compared to the 74HC244M, making the LVC244M a good choice for battery-powered applications where power dissipation and speed need to be considered.

74LVT244MSA Application Field and Working Principle

The 74LVT244MSA is a non-inverting 3-state buffer that can be used to drive memory chips and buffers, peripheral interface controllers, and system expansion buses. The high speed of the device makes it a good choice for applications requiring high speed such as systems with multiple interrupt service requests.

The working principle of the device is simple. Each output buffer has an individual output enable control. All output buffers are designed to be active when the output enable input is held low. The output buffer is turned off when the output enable input is high. This allows multiple buffers to be controlled independently with a single signal.

Another important feature isthat the outputs are protected against ESD, latch-up and excessive drive current. This is done by integrating the output protection diodes with each output buffer, effectively turning them into ESD protected 3-state buffers. This prevents the damage that can occur when the Buffer is subjected to high voltage spikes.

The 74LVT244MSA features programmable bus hold circuitry, so that the device can hold the bus when no valid data is present. This means that the 3-state output will be held until the next valid data arrives, eliminating interference on the bus.

The 74LVT244MSA also has a 5-V tolerant input, so that it can be used with devices with different supply voltage levels. This eliminates the need to use level-shifting when interfacing with devices with different supply voltages.

In conclusion, the 74LVT244MSA is a high performance, low power 3-state buffer that can be used in a variety of applications. It supports high speed data transfer, 5-V tolerant inputs, and provides ESD and latch-up protection. It is a good choice for applications requiring high speed, low power, and high reliability.

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